Upgrade your cycling experience with this comprehensive 9-Speed Multi Shift Groupset, designed to deliver smooth and reliable gear shifting for enhanced performance. This complete set includes a 9-speed freewheel, hollow integrated aluminum alloy crank, shift lever, rear derailleur, chain, tail hook, and essential accessories, providing everything needed to customize and optimize your bike. Key Features: · Durable High-Strength Steel Freewheel: Crafted from quenched, tempered, and hardened steel plate, the freewheel offers exceptional sturdiness and long-lasting durability for reliable performance under various riding conditions. · Advanced Rust Prevention: Featuring a multi-layer electroplated surface treatment, the freewheel resists rust and corrosion, while the drop gear design ensures smoother and more precise speed changes. · Lightweight Aluminum Alloy Crank: The hollow integrated crank is made from premium aluminum alloy, combining strength and lightness for improved power transfer and reduced weight. It boasts strong axial strength and a stylish appearance with broad compatibility across bike models. · Complete 9-Speed Groupset: Includes all necessary components such as shift lever, rear derailleur, chain, and tail hook, enabling seamless installation and perfect integration for an upgraded drivetrain. · DIY Bike Upgrade Solution: Ideal for cycling enthusiasts who enjoy customizing their bikes, this groupset allows for easy upgrades to enhance gear shifting performance and overall ride quality. Specifications: · Item Type: 9 Speed Groupset · Material: Aluminum Alloy (crank), High-Strength Steel (freewheel) · Teeth Number: 11-13-16-20-24-28-32-36-40T Package Includes: · 1 x 9-Speed Freewheel · 1 x Hollow Integrated Aluminum Alloy Crank · 1 x Shift Lever · 1 x Rear Derailleur · 1 x Chain · 1 x Tail Hook · Additional Accessories for Installation This 9-Speed Multi Shift Groupset is the perfect upgrade for cyclists seeking durability, smooth shifting, and lightweight performance. Its robust construction and rust-resistant design ensure longevity, while the comprehensive kit supports easy DIY installation and customization. Elevate your bike’s drivetrain and enjoy a more efficient and enjoyable ride.